Autofill doesn't work for Wifi pop-up window
When studying at the library and I automatically log in on the local Wifi there - as it should be. When connected there appears a pop up window, asking me to sign in with my username and password (for Internet access). The first time I manually typed it in, Safari didn't ask me if I wanted to save it in my keychain. So I manually added it. However Safari still never offers me to autofill. It wouldn't bug me so much, but the username and password is about 20 digits each, so I always have to copy/paste - which is a pain, because the Wifi auto-logs me out after some time of inactivity...